题目内容:
They _______ 3000 English words by the end of next month.
A.learned
B.had learned
C.will learn
D.have learne
参考答案:【答案仅供学习,请勿对照自行用药等】
They _______ 3000 English words by the end of next month.
A.learned
B.had learned
C.will learn
D.have learne